Freddie Mac's Chief Economist Frank Nothaft thinks this is more good news for the housing market:

"Rates on 30-year fixed mortgages have been at or below 4 percent for the last eight weeks and now are almost 0.9 percentage points below where they were at the beginning of the year, which means that today's homebuyers are paying over $1,200 less per year on a $200,000 loan. This greater affordability helped push existing home sales higher for the second consecutive month in November to an annualized pace of 4.42 million, the most since January. In addition, new construction of one-family homes also showed a back-to-back monthly gain in November to the largest increase since June. Moreover, homebuilder confidence in December rose to its highest reading since May 2010 according to the NAHB/Wells Fargo Housing Market Index."